103-43-38-0.r.naoum.net IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain 103-43-38-0.r.naoum.net is not the root of its zone.
Instead, try zone transfer on r.naoum.net .